Vaporizer for internal-combustion engines.



PATENTED AUG. 23, 1904.

APPLIOATION FILED NOV. 20. 1902.

2 BHEETQ-SHEBT 1 H0 MODEL.

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tmwtzwtk i "PATENTED AUG. 23, 1904.

0. J.- EVERETT. VAPORIZER FOR INTERNAL COMBUSTION ENGINES.

v urmouxon rum) 10120. 1902;

NQ MODEL.

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UNITE STATES Patented August 23, 1904.

PATENT. OFFICE.

CHARLES J. EVERETT, OF'NEW YORK, N. Y.

\VAPORIZER F oR INTERNAL-COMBUSTION ENGINES.

SPECIFICATION forming part .of Letters Patent No. 768,436, dated August23,- 1904.

Application filed November 20, 1902 Serial No. 132,076. (No model.)

To alt whom it may concern.-

Be it known that 1, CHARLES J. EVERETT, a citizen of the United States,and a resident of the borough of Manhattan, in the city and State of NewYork, have invented new and useful Improvements in Vaporizersfor-Interrial-Combustion Engines, of which the follow- 1 ing is aspecification.

My invention relates to improvements in in ternal-combustion engines,and more partic:

ularly to an internal-combustion engine in which a liquid hydrocarbonfuel-is injected into a hot vaporizer containing an'expansionmediumsuch, for instance, as compressed airthe vaporizer being kept at asuificiently high temperature to cause an ignition of the mixedhydrocarbon and air.

My invention contemplates a structure in which the vaporizer is carriedby the valvebox and is at all times in open communication therewithinstead of in direct communition with the cylinder, thus permitting thepiston to be brought into close proximity to the end wall of thecylinder at the limit of its outward stroke for increasing theefliciency of the engine by producing a higher pressure.

A further object is to provide a structure of the above characterinwhich a more thorsection through the valve-box and the portion of thecylinder of the; engine. Fig. 3 is a side view of the parts representedin Fig. 1,.

and Fig. 1 is a'transverse, vertical section taken inthe plane of theline AA of Fig. 3 looking in the direction of the arrows.

The engine-cylinder is denoted by 1, and the piston fitted toreciprocate therein is de- 5 noted by 2. p

The valve-box is denoted by 3, its removable cover by 4, and the usualinlet and exhaust valves by 5 and 6.

The chamber within the valve-box is de- 5-5 noted .by 7, and the portleading from the chamber to the interior of the cylinder 1 of the engineis denoted by 8.

The parts above described may be made of size and shape to suitdifferent requirements.

'The vaporizer is denoted by 9, which vaporizer is herein shown as beingformed in tegral with the cover or top 4 of the valvebox. However, thisvaporizer may be made i separate from the cover of the valve-box, the 5essential feature being that the interior of the vaporizer should bealways in open communication with the chamber 7 within the valvebox.This vaporizer is herein shown as of spherical form, and it may beheated up to a 7 point suflicient to ignite the combined liquidhydrocarbon and compressed air therein for starting the engine by anysuitable means such, for'instance, as a burner 10, and a hood l1,partially embracing and spaced from the vaporizer.

The injector for the liquid hydrocarbon is denoted by 12 and in thepresent instance is removably secured in the wall of the valve- -boX,with its discharge-tip 13 located within the chamber 7 in position todirect the entering liquid hydrocarbon into'the interior of thevaporizer 9 through the narrow port 14, which connects the interior ofthe vaporizer 9 with the chamber 7 of the valve-box. The 5 pipe 15. ofthe injector 12 leads to any suitable source of liquid-hydrocarbonsupply. (Not shown herein.)

The stroke of the piston within the cylinder 'is so arranged that thepiston will be brought 9 into close proximity to the outer end of thecylinder when the piston is at the limit of its outward movement, thuscompressing practically all of the air within the valve-box, port, andvaporizer.

' 9 The liquid hydrocarbonis injected'into the vaporizer by any desiredmeans at such a point in the stroke of the piston as will give the besteiiiciency and not endanger a premature ignition of the mixed oil andair.

While the vaporizer 9 is heated to a point suflieient to insure theignition of the mixed hydrocarbon and air for starting the engine, afterthe engine has been started the vaporizer will be kept sufliciently hotby the heat of combustion to render the exterior heating means Some ofthe advantages arising by connecting the vaporizer directly to thevalve-box are as follows: The liability of the formation of carbonWithin the cylinderis obviated, because of the ignition of the gaseswithin the valvebox, port and vaporizer. The vaporizer is kept veryclean, and the carbon will not be permitted to form on the wallsthereof. The air caused to enter the vaporizer during compression willbe the last and freshest air that entered the valve-box, thus insuring amore perfect combination with the liquid hydrocarbon injected into thevaporizer. Any formation of loose carbon Within the vaporizer orvalve-box Will either be blown out by the exhaustgases or the valve-boxchamber may be readily cleaned by removing the cover of the valve-boxWithout disturbing any other portion of the engine.

The arrangement hereinabove described also insures the discharge throughthe exhaust of any possible excess of liquid hydrocarbon at each-openingof the exhaust-valve. .This is a very-important point, as it preventsthe liability of the racing of the engine, which has proven a serioussource of trouble where an undue amount of liquid hydrocarbon has beenpermitted to collect within the cylinder or vaporizer.

Another great advantage arising from the arrangement of the partshereinabove described lies in the cheapness of construction, owing tothe small amount of machine-work required and the ease with which theparts may be assembled.

It is evident that changes might be resorted to in the form,construction, and arrangement of the several parts without departingfrom the spirit and scope of my invention. Hence 1 do not wish to limitmyself strictly to the structure herein set forth; but

therein, a valve-box in open communication with the cylinder, inlet andexhaust ports for the valve-box, a vaporizer in open communication withthe valve-box and an injector-nozzle located in the valve-box entirelyexterior to the vaporizer and arranged to direct the liquid hydrocarboninto the vaporizer.

3. An internal-combustion engine comprising a cylinder, a piston fittedto reciprocate therein, a valve-box, inlet and exhaust valves therefor,a removable cover for the valve-box, a vaporizer carried by the coverexterior to the Valve-box and in open communication therewith and meansfor injecting the liquid hydrocarbon into the vaporizer.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 19th day of November, 1902.

CHARLES J. EVEREHI.

W'itnesses:

FREDK. HAYNES 7 HENRY Tenn! n.

